Patents by Inventor Liang-Chuan Jseng

Liang-Chuan Jseng has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Plug with adjustable pins
    Patent number: 4886469
    Abstract: A plug with adjustable pins wherein the pins can be adjusted either inwardly or outwardly for enabling a tighter fit in the socket by means of an adjusting unit including a cylindrical knob and a pair of concentric end screws threadedly secured to corresponding ends of the pins.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: December 12, 1989
    Inventor: Liang-Chuan Jseng